[RNMobile] Remove unnecessary negative margin around empty gallery bl…

…ock (#47086)

This PR removes some unwanted negative margin space from empty gallery blocks on native.

packages/block-library/src/gallery/edit.js

@@ -486,11 +486,17 @@ function GalleryEdit( props ) {
 		className: classnames( className, 'has-nested-images' ),
 	} );
 
+	const nativeInnerBlockProps = Platform.isNative && {
+		marginHorizontal: 0,
+		marginVertical: 0,
+	};
+
 	const innerBlocksProps = useInnerBlocksProps( blockProps, {
 		allowedBlocks,
 		orientation: 'horizontal',
 		renderAppender: false,
 		__experimentalLayout: LAYOUT,
+		...nativeInnerBlockProps,
 	} );
 
 	if ( ! hasImages ) {

packages/react-native-editor/CHANGELOG.md

@@ -10,6 +10,7 @@ For each user feature we should also add a importance categorization label  to i
 -->
 
 ## Unreleased
+-   [**] Gallery block: Address styling regression, in which negative margin was added [#47086]
 
 ## 1.87.0
 -   [*] Add capabilities to force only Core blocks and control Support section [#46215]